1992 K75S starts on its own - BMW Luxury Touring Community
 1Likes
  • 1 Post By jzeiler
 
LinkBack Thread Tools Display Modes
post #1 of 3 Old May 20th, 2020, 3:18 pm Thread Starter
Junior Member
 
bromberg's Avatar
 
Join Date: May 2020
Posts: 3
1992 K75S starts on its own

Not to make light of my recent woes, but my bike is what you would call a "self starter" (if I had a kid, that would be wonderful )

This is the current problem I'm having with my 1992 K75S; I hope you can take a moment to help me with it:
1) After many months of just sitting there (on a trickle charge), my battery died (fortunately in my garage)
2) I charged it and it came back to life (100%)
3) When I attempt to attach the battery cables the starter kicks in without a key or me pushing the starter button
(it even attempts to start when I turn the kill switch on)

Any thoughts would be greatly appreciated and if you know of any competent BMW mechanics in South Florida please let me know!

Thanks in advance to all who reply,
Dan
bromberg is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old May 21st, 2020, 9:05 am
Lifetime Supporter
 
Patric's Avatar
 
Join Date: Feb 2004
Location: Zephyrhills, Florida USA
Posts: 1,474
Re: 1992 K75S starts on its own

your starter relay's points are welded together. It usually happens when you try to start the bike with a low battery. It happened to me a few times on a K100 . I replaced the relay once , then the second time I took the cover off the relay and filed the points to clean them up.

Patric Blackman
2002 K1200LT/Hannigan2+2
2010 R1200GSA ...1987 Helix...
AMA Charter Lifemember
37 Year Member of both BMWMOA & BMWRA

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Patric is offline  
post #3 of 3 Old May 21st, 2020, 2:11 pm
Wrencher Extraordinaire
 
jzeiler's Avatar
 
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,658
Re: 1992 K75S starts on its own

One more thing you can try is to turn on the key, then hold the negative terminal to the battery and repeatedly press the starter button while it is self cranking. This will "flex" the relay armature and may break the welded contacts apart. You can do this even if the bike does start. Press it at least 10-15 times then shut it off to see if it is still stuck.
Patric likes this.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 114 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jzeiler is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW Luxury Touring Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome